
348 THE x86 MICROPROCESSORS
QUESTIONS
What is the special feature of Port C when used in 1.
Mode 0a)
Mode 1b)
What does the term handshaking mean to you?2.
What is the importance of the BSR mode of the 8255?3.
Distinguish between the SPP and EPP protocols. 4.
How can we operate an ADC in the interrupt mode?5.
How is the current output of a DAC converted to a voltage?6.
How can a sine wave be generated by a DAC?7.
What is meant by a backlit LCD?8.
What is the function of the BUSY pin of an LCD module?9.
How do we make the LCD display move from left to right?10.
Name a few applications of the stepper motor. Why cannot dc motors be used here?11. ...